Fake-redaction detector / PDF inspector

Upload a PDF and this tool renders every page, samples the pixels, and flags any "fake redaction" — areas that look covered by a black box but whose underlying text is still copyable. It also lists identity-leaking hidden metadata (author, creator, timestamps) and tells you whether the file is searchable or scanned. The whole check runs locally; nothing is uploaded. Run it before sharing any "redacted" file.

How to use Fake-redaction detector / PDF inspector

1. 1Pick the PDF to inspect — analyzed locally, never uploaded
2. 2Wait a few seconds for the per-page render and sampling
3. 3Read the report: fake-redaction pages, leaking metadata, searchability
4. 4If fake redaction is found, jump straight to the true PDF redaction tool

Why this tool

Almost no competitor offers a verifiable "did the redaction actually work" check. We use post-render pixel sampling (far more robust than parsing operator geometry) to catch copyable text under black bars — turning the verifiability nobody else bothers with into your last line of defense.

FAQ

Does it guarantee my file is 100% safe?

No. It is a heuristic that errs toward false negatives. It catches the most common "black box" fake redaction, but PDFs are complex — always combine it with a manual copy-paste check.

Does inspecting change my file?

No. It is read-only analysis; no new file is produced and your original is untouched.